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BO Ot ty 1) ia 15 161? / ae ‘ Malld Technical BuHetins and Service information . : Table of contents Sheets re : i ; Food Saye
a
1. Read from left to right
2. Title of micrefiche (appears on each coordinate)
Product/assembly /test step | Vehicle/engine
. Coordinate
3. Limits of section
C =| Les] en ne
Beginning Mid-section End One-page section
4. References to relevant test steps in C6. . ~ -test specifications; coordinate e.g. C6 Al a Repair and testing §
1. Test specifications |
For test specifications see index of test- seebi fication Sheets VDT-W-231/1900 including test-specification —
Sheets VDT-WPE 120/2 ... 21 and VOT-W-231/1001 etc.
Breaker- -triggered ignition distributors 0 231 ... with retrofitted Halil generator are tested according to SIS test Mmstructions W-231/301.
Test snecifications I Ignition distributors 0 231...
2. Necessary test equipment, tools
Distributor test bench ZVS 50 0 683 400 200 Tachometer e.g. KTE 001.03 0.684 400 103 Voltage stabilizer e.g. _ Commercially
available Gossen 12 V/19 A
or battery 12 V 84 Ah e.g. 0 183 058 411
Contact feeler gauge ~ KDZV 7399
or e -
feeler gauge (0.05 ... 1 mm) Commercial ly | | available
Ohmmeter | | 0 684 101 400 e.g. ETE 014.00 |
3. Lubricants.
: Part No. Plain-bearing grease . | VS 14060 Ft 250g can 5 964 520 125 High-temperature grease , Ft 1V 4 50 g tube | 5 700: 002 005 Roiling-bearing grease Ft 1¥ 2€ 50 g tube ——- 5 700 005 005 Silicon paste . Le Ft 2V 4 50 g tube 5 700 083 005 | Special oil 01 1V 13 0.5 1 can — 5 962 260 605
3.1 Lubrication table
Genera
The following exploded views show the points which must =~ be treated with. the stated lubricants.
Pay particular attention to footnotes.
The exploded views cannot be : ed for the assembly of ignition distributors (incomplete).
Contacts, including injection-triggering contacts, must be kept absolutely free -from 071 and grease (operational malfunctions).
> a o bs
foe" - 5 700 002 005 _ ©%§ 700 005 005
5 700 005 005 2)
8 les
~
Lubrication points and lubricants o breaker-plate assembly : Normal version
1) Rub grease into lubricating sponge
2) Running ball and sliding surfaces
3) Grease wedge on side of rivet head 4) Rub grease into lubricating felt
Sa: we oe
ass SS
|
5 700 005 005 °? P ;
Breaker-plate assembly
with sponge
—_ a EN . °°5 700 005 005 .
are r | . 7 . 5 700° 002 005...5 «. Me edie as
5 700 002.005
5 700 005 005
231/10
Th
— Breaker-plate assembly witn felt |
5 qu 52125)
5°700 002 005 \
260 605 )
Lubrication points and lubricants ‘on
Ignition distributor ¥ | Tachometer drive
witn oiler 6) 0i1 groove
Lubrication table Ignition distributors 9 231 ..
ae
eo a : : Bx : - ZB < a 4 ~ ‘ Y -
s
LT rr G
ie .
° 2301
5 Ls
ie 4
Ignition distributor =,
with interference-suppression
cover |
7) Each tower filled with approx. 60 mm
| Lubrication table
Ignition distributors 0 231
y 5 964 520 125
Coy “~, .
5 964 520-125
4 ’ we
| | 5 964 520 125 : ; Ze = | | : 5 964 520 125 | “ 5 964 520 1256 if fa Be : = ‘ : ‘ : 2 iN ~ 5 962 260 605 |
<
- ee Re oy 5 964 520 125 529) ‘2
5 962,260-605 egy 5 964 520 125°
,95 964 520 125 -
58964 520 125 | #5 9645201257 ° NN. ~ § 964 520 125°)
>
231/02
WG advance mechanism (with plastic rubbing = Rolling-contact advance mechanism Sliding-contact advance mechanism. block Pe Ee Og Og ee I Se ee a ee ee
Lubrication points and lubricants on
centrifugal advance mechanism
8) Grease plastic rubbing block and bearing surface on shaft plate 9) Grease sliding surface
10)Grease sliding nIEPNe and ats bearing surface on shaft plate
‘
Lubrication table | tf | Lubrication table Ignition distributors 0 231... | | Ignition distributors 0 231 ...
5 700 002 005°)
©
al
Ignition distributors 0 231...
Lubrication table
+ ve) oO So N © So Oo =) ~ w
rivet head Ignition distributors 0 231
Lubrication table
rr a
Lubrication points and lubricants on 4) Rub grease into lubricating felt 5) Grease wedge (sparingly) on side of
trigger contacts .
ge
231/13
Lubrication points and lubricants on short-type ignition distributor
4.1 Test information
All rotational speeds given in the test specifications
refer to the ignition distributor drive shaft.
The direction of distributor rotation (viewed looking
down on the distributor cap) is given in the type
designation,
e.g. IFU4 « = clockwise rotation > = counterclockwise
: | rotation
or Z 42 + = clockwise rotation > = counterclockwise . rotation
The ignition distributor may only be driven with the distributor drive gear or coupling mounted in place (incorrect measurements can result from excessive longitudinal play in the distributor shaft).
The trigger contacts for electronic gasoline injection (only D-Jetronic) can only be exainined: visually.
In the case of ignition distributors without ignition condenser a condenser must be connected in parallel
with the contact breaker for testing.
4.2 Visual examination
The contacts must not be loose. Twisted or misaligned contacts must be replaced. F
Check the breaker lever rubbing block, contacts and cams for wear and damage,
The spring of the breaker lever must not be bent,
burned out or rusted. The contact points and the trigger contacts for electronic gasoline injection (D-Jetronic) must be absolutely: free from oi] and grease.
Dirty contact points cause heavy contact arcing, reduce the ignition performance and considerably shorten the service life of the contacts.
Oil-fouled and dirty trigger contacts for electronic gasoline injection cause malfunctions in pulse triggering.
Tne distributor cap and the distributor rotor must be clean and must have no cracks or leakage paths.
| Testing
Ignition distributors 0 5 ae
2314 &
Distributor test bench Voltage stabilizer/battery Tach-dwell meter
Testing the dwell] angle (Test specifications VDT-WPE 120/2... 21 or VDT-W-231/ 100% etc). Mount the ignition distributor on the dice anton. test bench and connect to the test equipment as shown in the above diagram. Follow the operating eee ean for the individual testers.
“Testing Ignition distributors 0 231...
Switch on the 12 V power supply.
Operate the ignition distributor at a speed ere is about 100 min=! below the speed for the earliest start of centrifugal advance (see test specifications).
Read off the indicated dwell angle (average of all cylinders) and compare with test specifications.
Switch off power supply.
“Note Set the dwell angle to the middle of the tolerance range. Wear on contacts, rubbing block, cams and distributor-shaft mounting changes the dwell] angle.
- The dwell angle is dependent on the cam contour and the contact gap.
. 4, 4 wee the contact | gap est specifications VDT- WPE 120/2 ... 21 or VOT-W-231/1001 etc).
The value given is the minimum value. After setting . the dwell angle, check the contact gap with the contact feeler gauge. The largest contact gap is when the breaker lever rubbing | block is on the highest point of the cam. t If the contact gap is not reached, there Jis a | defective cam.
4.5 Testing the ignition condenser (not given in test
specifications) . 3 Test the series resistance with ignition tester fol low- ing the respective operating instructions.
Note
The ignition condenser must be well grounded to the distributor housing; the insulated connecting lead must have proper contact with terminal 1 of the ignition . distributor. . In the event of a short circuit (no ignition sparks) or an open circuit in the condenser (poor ignition performance and heavy contact arcing) | the ignition condenser. ‘must be replaced.
Testin | Ignition distributors 0 231...
231/14
Distributor test bench
bites | 3.5, Noltage stabilizer/battery = 8 = Tach-dwell meter OS 4.6 Testing the centrifugal advance Test specifications -WP -e- 21 or VDT-W-231/. 1001 etc)
Mount the ignition distabutor in position, and connect - it to the test equipment as shown in the above diagram.
Follow the operating instructions for the individual testers. |
B g Testing | | : Ignition distributors 0 231...
1-5 Illuminated mark
Operate the ignition distributor at a speed which is
100 min™" below the speed for the earliest start of centrifugal advance (see test specifications). | Then turn the scale ring of the distributor test bench or ignition distributor so that the illuminated mark of a cylinder lights up at 0°/360° (zero point).
See illustration. Tighten tightening screw of ignition © distributor or clamping ring of chuck.
Testing Ignition distributors 0 231
The centrifugal advance is checked at least twice at each change of divaction as well as ENE a 2 ole, ar aiges ePPd in the end range of a curve. The test is only to be carried out with increasing speed ee ee er ee (this avoids measurement errors). ae os | Tah 64 Read off the advance angle and compare with test specifications. See figures for. examples. If an addition to the tolerance range of + 0.5° is given in the test specifications, the upper line of the tolerance range must be extended. by 0.5° to the top, and the lower line by 0.5° to the bottom.
If the specified values are not. reached, the TgneEy en distributor (advance system) is defective. )
_ Switch off the power supply.
Soo 6c9 ne 237/58
= Distributor shaft speed 2 = Distributor shaft advance = Negative gauge pressure.
(Vacuum
8/9 = Start of centrifugal advance = End of centrifugal advance
12/13 = In extreme cases the end of
centrifugal advance may be
located here.
16 = Change in curve direction.
Testin
Ignition distributors 0 231... : Ignition distributors 0 |
500 1000 1500 2000 2500, 4080.. 3200 4000 min
a
237/59
Distributor Shaft speed Distributor shaft advance Negative gauge pressure (vacuum) = Start of centrifugal advance End of centrifugal advance. In extreme cases the end of centrifugal advance - may be located here. Change in curve direction “Adjustment base"
Advance curve with Wsagastment base" (19)
After the zero point adjustment of the distributor test. bench (scale ring) it is possible, without the —
centrifugal advance operating, for there to be a slight
advance Gan 0.5°) although the centrifugal advance
only starts at points 8/9. ;
Testing. Ignition sist outers 0 °237 ax
= Vacuum connection “retard” 22 = Gauge pressure connection "advance"
Note: According to DIN the term "vacuum" should be replaced with "negative gauge pressure". For the sake of simplicity, however, we will continue to use
"vacuum",
4.7 Testing the vacuum advance
4.7.1 Testing the vacuum unit for leaks
(not given in test specifications) =
Connect the vacuum connection hose from the distributor test bench to the vacuum unit. Increase the vacuum using the vacuum pump until 600
mbar is reached. ‘Switch off the vacuum pump.
Testin Ignition distributors 0 231...
The maximum permissible pressure drop in 1 minute is 20%. Eliminate any leaks at the connection. Replace leaky vacuum advance mechanisms.
In the event of an extremely heavy pressure drop check
whether the vacuum unit has a vent hole (approx. 0.5 mm diameter). See picture, arrow. The hole should be sealed while testing for leaks. .
237/26
1 = Illuminated mark
4.7.2 Testing the vacuum advance (Test specifications VDT-WPE 12072 ... 21 or VDT-W-231/1001 etc).
Mount the ignition distributor in position and connect | to test equipment. Switch on the 12 V power supply.
Operate the ignition distributor at a speed which is
200 min-! above the end of centrifugal advance (see test specifications). '
Turn the scale ring of distributor test bench or turn the ignition distributor so that the illuminated mark
of a cylinder lights up at 0°/360°. See picture. Tighten tightening screw of ignition distributor or clamping ring of chuck.
2°
500. 1000
ae ; aA “5 at 500-3000 3500 4000 min. | ele 2 PE
fit
_ 237137
Distributor shaft speed 8/9, 12/13.= start of Distributor shaft advance vacuum advance Negative gauge pressure "Advance and retard (vacuum) unit" |
= Negative gauge pressure _—10/11, 14/15 = end of (vacuum) advance vacuum advance: Negative gauge pressure _. “Advance and retard (vacuum) retard unit"
Check whether the advance angle is within the stated tolerance range as the vacuum is increased. See figure for example. ae ® If an addition to the tolerance range of + 0.5° is given in the test specifications, the upper line must be extended by 0.5° to the top, and the lower line by 0.5° to the bottom. |
If the values measured are not within the tolerance range, “check the breaker-plate - as =o assembly and tie rod for freedom of movement. TE, Sete Mec etme conti ciee face eat When the end of vacuum advance has been reached, an increase in the vacuum must not a oan ee ee ee
result in an additional advance.
Switch off the power supply.
Advance curve with "adjustment base" aa After the zero point adjustment of the distributor test bench (scale ing) it is possible ! 7
with increasing vacuum for there to be a slight advance (max. 0.5°) although the actual : =: == ner vacuum advance only starts at points 8/9 or 12/13. . | | er eae oa = j= menor
6OO mbar . 237138
1 = Distributor shaft speed .2 = Distributor shaft advance 3 = Negative gauge pressure (vacuum) | 5 = Negative gauge pressure (vacuum) advance 6 = Negative gauge pressure (vacuum) retard 8/9, 12/13 = Start of vacuum advance "Advance and retard unit" 10/11, 14/15 =: End of vacuum advance "Advance and retard unit" 19 = "Adjustment base"
Testing Ignition distributors 0 231 ...
Testing Ignition distributors 0 231
4.8 Vacuum/overpressure advance - test pressure unit with one or. two connecting pipes. (Test specifications VDT- WPE 120/2 ... 21 or VDT-W-231/1001 etc)
4.8.1 Testing the vacuum unit or overpressure unit for leaks ot given in test specifications Connect vacuum hose of distributor test bench to pressure unit. In the case of the vacuum/overpressure unit with double retard, the cverpressure unit is also tested for leaks with vacuum. In the case of the vacuum/overpressure unit with one connecting pipe, the advance and retard unit is tested for leaks with vacuum. Increase the. vacuum using the vacuum pump until 600° mbar is reached. Switch off the vacuum pump. Permissible pressure drop in 1 minute max. 20%. Eliminate any leaks at the connection. Replace vacuum advance mechanisms if leaking.
Testin Ignition distributors 0 231 ...
20 22
23
237/35 .
Vacuum connection "retard"
‘Overpressure connection.
"retard"
Vacuum connection "advance" and
overpressure connection "retard"
237/40
237] 26
1 = I]luminated mark
4.8.2 Testing the vacuum advance
Mount the ignition distributor in position and connect. to test equipment. Switch on the 12-V power supply.
Operate ihe ignition distributor at a speed which is
200 min7' above the end of centrifugal advance (see test specifications).
Turn the scale ring of distributor test bench or turn the ignition distributor so that the illuminated mark
of a cylinder lights up at 0°/360°. See picture. Tighten tightening screw of ignition distributor or clamping ring of chuck.
Check wnether, with increasing vacuum, the advance angle is within the given tolerance range. See figures for example.
‘If an. addition te the tolerance range of = 0.5° is given in the test specifications, the
upper Tine must be extended by 0.5° to the top, and the lower line by 0.5° to the bottom.
“If the measured values are not within the tolerance range, check the breaker- r-plate
assembly and tie rod for freedom of movement. After reaching the end of advance, an increase in the vacuum must not cause any further advance.
Advance curve with “adjustment base" (19)
After the zero point adjustment of the distributor test bench (scale ring) it is
possible, with increasing vacuum, for there to be a slight advance (max. 0.5°) although the actual vacuum advance only. starts at points 8/9.
las
Testin : | . Testin
= Distributor shaft speed
{ 2 = Distributor shaft advance 3 = Negative gauge pressure
(vacuum) 4 = Overpressure ' 6 = Negative gauge pressure (vacuum) retard 7 = Overpressure retard
8/9, 12/13 = Start of vacuum/ overpressure advance with double retard
10/11, 14/15 = End of vacuum/ overpressure advance with double
; retard |
19 = "Adjustment base"
FS ee ee eh eee ae er alee : Ignition. distributor 0 231 ... Ignition distributor 0 231...
i —
Advance curve with “adjustment base” ;
After the zero point adjustment of the distributor test bench (scale ring) it is possible, é with increasing vacuum, for there to be a slight advance (max. 0.5°) although the actual vacuum advance only starts at es 12/13.
,
Note A- double unit with one connecting Bip "advances" when vacuum is applied and "retards" when overpressure is apptied.
0.200 fe oC 9° 206 - = O19 —— , ‘ |
237/42
~
= Distributor shaft Sree
Distributor shaft advance
= Negative gauge pressure
(vacuum)
= Overpressure
= Negative gauge pressure
| (vacuum) advance
7 = Overpressure retard
8/9, 12/13 = Start of vacuum/ overpressure advance with advance/retard .
10/11, 14/15 = End of vacuum/ overpressure advance
19 = "Adjustment base"
WN == T
oe
Testing Ignition distributors 0 231...
Testin
Ignition distributors 0 231 .
237/43
Adjusting screw = Vacuum connection "retard" Screw plug = QOverpressure connection "retard"
Pressure gauge
Distributor test bench. Vacuum/overpressure unit
Adjustment throttle
4.8.3 Testing the overpressure advance
Mount the ignition distributor on the distributor test bench. . Connect the overpressure connection of the distributor test bench to the lower connection of the adjustment throttle. Connect the overpressure connection of the ignition distributor to the upper connection of the adjustment throttle. See connection diagram above. .
Note: Adjusting screw (16) is for adjusting the pressure. If a pressure of 1.2 bar is not reached, unscrew adjusting screw (16) and coat thread with viscous grease. Re-insert adjusting screw (16). Screw plug (17) is open during testing.
237/26
1 = Illuminated mark
Bannece the ignition distributor to the test equinnents Switch on the Aev power supply.
Operate_fhe ignition. distributor at.a speed which 1s
200 min ' above the end of centrifugal advance (see test
specifications).
Turn the scale ring of Siceribatos test bench or turn the ignition distributor so thatthe illuminated mark of a cylinder lights up at 0°/360°. See picture. Tighten tightening screw of ignition distributor or clamping ring of chuck. .
sf i : te 8 Cc ; ; ; : 4 ; es ees oe e : .
Check whether, with increasing overpressure, the advance angle is within. the stated
tolerance range. See figures for examples.
If an addition to the tolerance range of + 0.5° is given in the test specifications,
the upper Tine must be extended by 0.5° to the top,and the lower line by 0.5° to the
bottom. If the measured values are not within the tolerance range, check the breaker- pTate assembly and tie rods for freedom of movement.
ine reaching the end of advance, an increasé in the overpressure must not cause any
further advance.
; Advance curve with "adjustment base" (197 After the zero point adjustment of the distributor test bench (scale ring) it is possible, with increasing overpressure, for there to be a slight advance (max. 0.5°) although the actual overpressure advance only starts at points 12/13.
Distributor shaft speed
Distributor shaft advance -—
Negative gauge pressure (vacuum)
Overpressure
Negative gauge pressure (vacuum)
retard
7 = Overpressure. retard
8/9, 12/13 = Start of Gaconsoveten. pressure advance with double retard.
10/11, 14/15 = End of vacuum/over-
| pressure advance with double
retard 19 = "Adjustment base"
MAPPWwWr— ee | | | |
FN.
Ignition distributor 0 231 | —_F Ignition distributor 0 231 _ | |
Further example of an advance curve, e.g. overpressure retard Advance curve with “adjustment base" (19) | After the zero point adjustment of the distributor test bench gets cia) it is
possible, with increasing overpressure, for there to be a slight advance (max. 0.5°) although the actual overpressure advance only starts at points 8/9.
Note: A double unit with one connecting pipe "advances" when vacuum is applied’ and "retards" when overpressure is applied.
Switch off the power supply. |
elms 237/45
“Distributor shaft speed
= Distributor shaft advance
= Negative gauge pressure (vacuum)
Overpressure .
Negative gauge pressure’ (vacuum)
advance
7, = Overpressure retard |
8/9, 12/13 = Start of vacuum/over- pressure advance with advance/ retard
10/11.14/15 = End of eacuun/overe
_- pressure advance
19 = "Adjustment base"
mn
Hi,
oe wr
Testin | | | Testin
qnition distributor 0 231 _ | Ignition distributor 0 231
3 = Voltage stabilizer/battery 8 = Voltmeter - 9 = Tachometer
= Distributor test bench with ignition distributor
-21 or. VDT-W-231/1001 etc.)
5. Testing the engine-speed limiter (test specifications VDT-WPE 120/2.. Follow the operating
Mount the ignition distributor and connect to the test equiplen es as shown in the above diagram. instructions for the individual testers.
Switch on the 12 V power supply.
Operate the ignition distributor at the species speed. The engine-speed limiter is OK if, up to the specified minimum rere e the voltmeter indicates no voltage and, as of the specified
maximum speed, it indicates voltage. Switch ii the power supply.
After-sales Service Technical Bulletin ss
Onty for use within the Bosch orgamzotion. Not to be communicated to any Ihied party.
| 2 | Deals .< VOT-BME 121/89 23) Short-type ignition distributor . VOT-1~230/191
10.7.1974 : «,, Destroy edition of 28.5.1974
The position of the second shaft tearing (bearing end plate) abeve the dis- tributor contact points ‘nakes it necessary cto observe the following points under all circumstances when carrying out maintenance operations.
1. In order to remove and install the distributor contact points, remove the bearing end plate (avoid fouling the bushing). With the bearing end plate removed, the distributor must not be driven (engine, distributor test bench) since, otherwise, the lower bearing bushing in the distributor will be damaged. . The contact gap and dwet? angic.must not be checked or adjusted without the bearing end plate (incorrect measurement).
nea
Tt aga ee eee,
2. Whenever changing the contact points, apply a drop of oil to the upper bearing bushing ise arrow) (OL 1 v13, oi} can 0.05 liter - Part No. 5 701 042 350, can 0.5 liter - Part No. 5 701 0&2 605, can 1.0 liter - Part No. 5 701 042 610). Caution: Do not oil up contacts.
3. The self-lubricating bushing pressed into the bearing end plate is per- ! manently lubricated. Therefore, do not clean the bearing end plate with gasoline or similar. ,
“Ne mite pep oeyanacane ard aera ne a erimarenisrmmnreret meee * oo
. Twachaltsde’ n> KM. Kundendenst. Kiz-A-erustung, a ; » © by tat Boe.N Gnd, D-? Stuttgart 1 Postfach 50. Printed in (ne Federal Repubic of Germany. Imprmne en Réepubs we Federale TAomagne par Rodert Bosch GmbH.
Technical Bulletin: : Ignition distributor 0 231
or.
Azéer-sales Service Service Information ~
Onty for use wathin the Bosch orgenization. Not to be communicated to any thied party.
9g B.
VDT-I 1-230/102 Ed. 1 : : Translation of German | edition of 28.8.1975 -
bap ~* . : Maintenance of Contact Points in Ignition Distributor Ignition system troubles are frequently caused by 2 laek of maintenance at the distributor contact points, viz: 1. Wrong contact gap/dwell angle
Installing replacement contact points without greasing the rubbing block leads toa high - degree of wear, with the result that the contact gap becomes too small after a snort peed of service.
Remec; .
Grease the rubbing blocka as PiseeHes? (VDT-WJE 120/1 8) with “Ft 1 v4 special grease.
Part Number of 50g _ tube . 5 700 002 005 " . "250 g tube 5 700 002 025
-
Sonne types have a built-in lubricating sponge or piece of felt o ‘os standard, for cam hen : cation. These should be checked visually.
"Replace distributors whose cams have damaged surfaces.
After installing replacement contact points, set the dwell angle .o the ewes: tolerance: limit.
2. Dirt fouling Do not overlubricate ignition dishiboter, but hues the contact surfaces clean a gr ase: : free. The protective cap for the contact polls: built-in as standard in some types must be replaced dfter charlging the poinis. E
Browny-blackish contact surfaces indicate lubricant deposits.
3. Breaker-triggered semiconductor ignition systems
Points 1 and 2 are of particular importance here. Teo small a contact gap encourages the __ possible formation of tungsten oxide due to the condensor discharge when the points close,
- ~which leads to increased cuntact resistance and a recognisable blue discoloration of the contact points. Contact resistances of 20 ohms or more lead to foolts | in TCI aysters:
at
Gesachattabererch KH Kuncendanst. KIz-Ausrustung ~ © by Robert Bosch Gmbe, 0-7 Stuttgart 1. Posttach $0. Printed m tne Federal Repubtc of gama Impnimd en Reoublave Federsie dAtemagne par Robert Bosch Gmow
Technical Bulletins I nition distributor 0 231
The.condensor is only for interference suppression purposes on breaker-triggered TCh _ systems, and can either: a
be feoued completely
be replaced by an intedibienee. suppression filter, e.g. 0 290 002 021/022, or be replaced by screening cable 1, with one end of ground: connection. - grounded to ignition distabulon: :
For Daimler-Benz vehicles with 8-cylinder engines, screened control leads have been brought out:
r Part No. 1} 234 431 251 for TCi trigger boxes similar to 0 227 051 014 with pin terminal, Part No. ? 234 431 252 for TCI trigger boxes similar to 0 227 051 015 with triple blade terminal, or to’'0 227 051 017 with individually connectable cable ends.
In case of inquiry, please contact your authorized representative.
ROBERT BOSCH GMBH Geschiftsbereich K 1 Abteilung VAK 6
Technical Bulletins Ignition distributor 0 231 ...,
Atter-saies Service
Service information
Onty for use within the Bosch organization. Not 10 be communicated to any third party.
| | 7 - 23° Distributor contact peints for Daimler-Benz ; VDT=I- 230/102 B : 3.5 and 4.5 | engines. Suppl. 1 10.1975 | “Ed. 1
; Translation of German
: ae edition of 1.10, 1975 In addition to the screened control leads (TCI), which have already been dealt with a new distributor contact set has been specified for the engines q::oted above,
old: ; new: for: 1 237 013 084 .. 142 ZV 0 231 401 .. and 402 1 237 013 110 Lies 128. * ZV 0231 403 ..., : ’ 0 231 401 004 und | 0 231 402 008 = 0 231 404 002
The new sets contain a grease capsule (not shown) (1 217 402 001) with greose Ft 1 v 4nd a cover } 230 583 004. The rubbing block is of extra-hard-wearing polyimide.
Lubrication as usual (see Fig.). a ‘
The riew cover must be fitted. Lote cg
The c:ntact sets for the é-cyl. and 4-cyl. engines have not changed, and the original types will continue to be fitted. Care must be taken to route the wiring correctly.
_ In case of inquiry, please contact your authorized representative.
Published by: ~ vin Trade Division K 1° Dept. K 1/VAK 6 can
Geschaltsbereich KH. Kundendienal. Ktzr-Ausnistung eB ¢ by Robert Bosch Gmon, 0-7 Stuttgart 1. Postfach 50 Pnated in the Federal Repubtic of Germany imprune en Repudbque Federale d'Ademagne par Robert Bosch GmbH.
Technical Bulletins
Ignition distributor 0 231...
_After-sales Service Technical Bulletin -*
Oniy for usa within the Booch organization Not fo be communicated to any third party. . : VDT-I-230/102 B
Suppl. 2. 7. 1976
Removal of the Ignition Condenser
In our technical bulletin VDT-1-230/102 B Ed. 1 together with the supplement of 10.75 we 7 dealt specially with the maintenance of distributor contact points. At the same time the practi- — cability of removing the ignition condenser was described in conjunction with the Tcl ignition
aie (breaker-triggered).
To prevent any shisuederstandiigs we would like to point out as a precaution, that this recom- mendation can not, of course, be‘applied to conventional ignition systems, due to the high
switching currents involved.
Here, as before, the condenser on. the ignition distributor is absolutely essential for spark sup- _pression. A missing or faulty (open-circuit) ignition condenser leads to heavy contact arcing with extreme contact wear, bad eiontion performance and finally to complete failure of the
ignition system.
The testing procedure for ignition Fee vere is Gontcined®t in VDT-““PE 120/2 B.. In doubtful cases we recommend the replacement of the ignition condenser.
Geschsttederesich Kr. Kundendienst Kiz- -Ausrdetung BOSCH o by elerorkenr sAieciaside 0-7 Stuttgart 1, Postiach ‘SO. Printed in the Federal Repudic of Germeny. imorina en Kepy’ “—-9 Foderale d'Ahzsnagne per Robert Boesch GmoH. Technical Bu “Ins Ignition distributor 0 231 ...
_ After-sales Service Technical Suiletin |
f
Onty for use mthin the Bosch argamzation. Not to be communicated to any third party. 23 : VOT-1-230/103 :
Ed. 1: 22.9.1975
0 231.. Distributor rotor for Ford V 6 models
The corrective action described in VDT-BME 121/86 is not sufficient in every case. If, despite using distributor rotor 1 234 332°173 or ..197 made of ‘polyester with long spring, it still rises up on the cam, it is possible to use a special? version made of Bakelite.
This special rotor can be obtained from « !/VLP at a K-price of 6.--DM less dis- —— count under the non-released Part Number 0D 231 007 360 with DB t! order.
— Rotors of the various: versions which nave been the subject of complaint should te sent in - irrespective of the warranty period - together with the filled-in warranty plain text voucher/punched card,-accompanied by an explanatory note
g stating the total mileage of the engine, to
ROBERT BOSCH GMEK KH/LAV * zur Weiterleitung an Ki/VAK 6
‘Postfaci 30 02 20 7000 Stutt gart 30
In the’ warranty report always enter as the replaced part only a distributor rotor 1 234 332 197. The work can be carried out free of charge as goodwill) for the customer. We will reimburse you with the net price of a distributor rotor 1 234 332 197 and 2 work units. ¢ oa
Published by: Division K 1 Dept. K1/VAK 6
oo Geechaftedbeceich 104. Kundendenst. Kiz-Ausristung 4 H © by Robert Boech GmbH, 0-7 Stuttgert 1, Posttacn 60. Printed in the Federal Repudiic of Germany. , Imprint en République Fedéeraie d'Alemagne par Robert Bosch Gmbit. :
4
_Technical Bulletins Ignition distributor 0 231...
| After-sales Service Technical Bulletin te 8
Only for use wittan the Bosch organization. Not to be communicated to any third perty. ‘ ’
IGNITION SAFEGUARD WITH IGNITION ~ yp T-d-234/102 En | DISTRIBUTORS 0231 178 016: a - 4.1980 017 i : cay
VOLVO - PENTA Marine engines RISK OF ACCIDENT eet
’ General ; The US Coast Guard Regulation’ for scolineanives boat engines demand a. so- called "ignition safeguard " in the products for the electrical engine equipment (including the ignition distributor). This is to make sure that explosions do not occur when operated in,a combustible atmosphere. —
‘ "Ignition safeguard" characteristics - ‘ The foltowing special precautions have been introduced in gr distributors with “ignition safeguard": :
* boltec distributor cap without ventilation slots, but. with 2 Tuas: with i labyrinth ventilation in the upper part of the housing; s
round primary cable lead-through instead of rectangular;- ‘
perforated plate and metal strainer ring in the lower part of the housing for' sealing the housing ventilation holes (recognizable from below enrol the ventilation bores).
Up to FD 932 the distributor housing has a recess for an O-ring. From FD 041 the O-ring between the distributor housing and the distributor cap is dispensed with and with it the recess in the distributor housing.
Workshop instructions
- During all repair work on ignition distributors with a recess for an O-ring in the distributor housing, care should be taken to see that a missing or damaged ~. G-ring is replaced.
When repairs are carried out you should check to see that the special precautions . described in the section “Ignition safeguard characteristics” are fitted. There should be no additional holes or openings in the ignition-distributor housing
or in the distributor cap.
Geschaftabereicn KK. Kundendienst. Kiz-Aueristung , BOSCH ¢ by Robert teece Gmbv, 0-7 Stuttgart 1. Poettach $0. Printed in the Feceret Republic of Germany. Impenne en Répudsque Federale d'Ahemayne per Robert Bosch GmbW. x
Technical Bulletins
Ignition distributor 0 231...
After-sales Service
Technical Bulletin
Only for use within the Bosch organization. Not to re communicated to any third party.
- IGNITION-DISTRIBUTOR ROTOR . Lm Ss | VDT-1-231/104 En wjth speed limitation : 4.1981
023... , .
Cross-reference of distributor rotors with and without speed limitation and with details of cutoff speed. :
Instructions relating to the certificate of registration in the Falere Republic of Germany (In other countries the relevant regulations should be observed).
The fitting of a distributor rotor with limitation is permitted, when the output and rated engine speed of the vehicles are not thereby affected (see certificate of registration, column A, paragraph 7). The cutoff speed must
Snot be lower than the rated engine speed. When a distributor rotor without limitation is fitted in vehicles which have .
as original equipment a distributor rotor with limitation, or in the certificate of registration of which a Sneak rotor with limitation is entered, the
general homolcgation (ABE) is no longer valid. Distributor rotor without Distributor rotor with Cutoff gpeed © speed limitation — speed limitation ; , min- 1 234 332173 1 234 332 284 5.900 | 1 234 332 173 1234 332 517 6.100 1 234 332 173 1 234 332 272 : - 6.200 1 234 332 173 ye 1 234 332 225 6. 300 1234 3321737 * * 1 234 332 196. : : 6.600 1 234 332 173 1234 332 2230 7.000 1 234 332 177 1 234 332 217 5.300 = 1 234 332 177 ~ 1 234 332203 - 5.850 1234 332 177 1 234 332 238 6.300 1234 332 177 1 234 332 202 6.500 1 234 332 215 1234332218 3.600 1 234 332 215 1 234 332 192 . 4.500 1 234 332 215 1 234 332 209 | 5.300 1 234 332 215 1 234 332 144 5.400 1 234 332 215 1 234 332 207 5.800 1 234 332 215 1234 332 222 - 6.000 \ XN oe we é . ‘ : 8 -
Geschattsbereich KH. Kundencenst Ktr-Ausni stung. Bos< Ki © by Robert Bosch GmbH. 0-7 Stuttgart |, Postiach 50. Printed in the Federal Repudtic of Germany mone ‘ern mapuniaee Fecerste < atemegre oe ree Boech GmoH
jcal Bulletins ion distributor 0 231
‘Distributor rator without Distributor rotor with - Cutoff speed mine
ee ee ee ee ee ee)
’ speed limitation speed limitation — 234 332 215 ‘1.238 332: 220 6.350 2348 332 215” 1 234 332 288 6.400 23% 332 215 1 234 332 198 6.500 . 234 332 238 _ 1 234 332 208 ‘ - 6.600 234 332 215. 1 238 332 242 6.700 234 332 215 1 234 332 199 6.800 234 332 215 - 1/234 332 224 6.900 234 332 215 1 234 332 221- . - 7.000. 7 238 332 215 1 234 332 205 — 7.100 234 332 215 1 238 332 206 7.300 ¥ 234 332 271 1 238 332 297 - 6,600 1° 234 332 271 1 234.332 299 - 6.700 1 234 332 274 P - -6.900_
1 234 332 271
Technical Bulletins Ignition distributor
a
Table of Contents
section |
Structure of microfiche 1.
| Table of contents anition distributor 0 231...
e ee. ¢ e e es e s e e e e WONNN DOP WN >
.8.1 Testing the vacuum unit or ouerpressuve
2 3 4 4 4 4 4 4 4 4, 4 4 4 4 4.8.2 Testing the vacuum advance | a 5 T
echnical Bulletins
= a Test specifications
Necessary test equipment, tools Lubricants, lubrication table
Testing
Test information
Visual examination
Testing the dwell angle
Testing the contact gap
Testing the ignition condenser
Testing the centrifugal advance
Testing the vacuum advance
1 Le vacuum unit for ee
.2 Tasting the vacuum advance a. Testing the vacuum/overpressure advance - pressure unit with one or two. connecting pipes
unit for leaks
.8.3 Testing the. overpressure advance Testing the engine-speed limiter
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Coordinate
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